As others have sort of pointed out, your opening sentence is incorrect. That "307W" draw is "Full System Power Consumption", not just the CPU. The 12900K will draw around 230-240W at max load (when doing work like Blender renders), compared to 140W for a 5900X.
But for Gaming loads where the CPU maxes out, I haven't seen reviewers hit those numbers. The 12900K was using ~125W in those workloads, just a few watts lower than AMD.
Now, if you go down to Intel's midrange (i5, not the i9 you were quoting), the power usage is way down (at 125W), vs the AMD 5600X at 75W with a blender workload. Gaming workload, Intel is a few watts higher than AMD.
Yes, Intel is drawing way more power for super CPU intensive tasks, but for what most people will be doing, it's pretty even.
Source: LTT review: https://www.youtube.com/watch?v=-EogHCFd7w0&t=513s
But for Gaming loads where the CPU maxes out, I haven't seen reviewers hit those numbers. The 12900K was using ~125W in those workloads, just a few watts lower than AMD.
Now, if you go down to Intel's midrange (i5, not the i9 you were quoting), the power usage is way down (at 125W), vs the AMD 5600X at 75W with a blender workload. Gaming workload, Intel is a few watts higher than AMD.
Yes, Intel is drawing way more power for super CPU intensive tasks, but for what most people will be doing, it's pretty even.
Source: LTT review: https://www.youtube.com/watch?v=-EogHCFd7w0&t=513s